[Elecraft] K2 upgrade mods tactical planning [was:Re: Return of the prodigal daughter]

[Vic Rosenthal]

Ron D'Eau Claire wrote:

> The oscillator stability mods really show up mostly on the higher-frequency
> bands above 20 meters. On the lower bands, the drift in these oscillators
> tend to cancel,  but on the bands above 20 they add due to the way the
> mixing scheme works. That can produce excessive drift on the higher bands. 
> 
> I'd not hesitate to operate the K2 without the mods in any but the most
> demanding service such as PSK31 and then only be really concerned on the
> higher bands. 

Ron is correct, but I'd like to add that the VFO stability mod should be 
considered a must if you are planning to add a KPA100.  The extra heat will 
cause very noticeable drift.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco